addcr(1)
NAME
addcr - add a CR before each LF
SYNOPSIS
addcr
DESCRIPTION
addcr inserts CR at the end of each line of input. It does not insert
CR at the end of a partial final line.
COMPATIBILITY
Some vendors ship unix2dos or bsd2dos tools similar to addcr. Those
tools often blow up on long lines and nulls. addcr has no trouble with
long lines and nulls.